IBM User Guide for Java V7 on Windows > Troubleshooting and support > Using diagnostic tools > Using system dumps and the dump viewer

System dump defaults

There are default agents for producing system dumps when using the JVM.

Using the -Xdump:what option shows the following system dump agent:

-Xdump:system:
    events=gpf+abort+traceassert+corruptcache,
    label=/home/user/core.%Y%m%d.%H%M%S.%pid.dmp,
    range=1..0,
    priority=999,
    request=serial

This output shows that by default a system dump is produced in these cases:

• A general protection fault occurs. (For example, branching to memory location 0, or a protection exception.)
• An abort is encountered. (For example, native code has called abort() or when using kill -ABRT on Linux)

Attention: The JVM used to produce this output when a SIGSEGV signal was encountered. This behavior is no longer supported. Use the ABRT signal to produce dumps.

Parent: Using system dumps and the dump viewer

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